公开(公告)号：US09417156B2

公开(公告)日：2016-08-16

申请号：US13580903

申请日：2011-02-03

Applicant: Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Arno Steckenborn ,  Oliver Theile ,  Hans Tischmacher

Inventor： Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Arno Steckenborn ,  Oliver Theile ,  Hans Tischmacher

IPC: H02P7/00 ,  G01M13/04

CPC classification number: G01M13/04

Abstract: A method and device for assessing damage to a rolling bearing caused by bearing currents, in particular high-frequency bearing currents, in an electric machine which is electrically connected to an inverter, in particular to an inverter having a DC voltage link circuit, is described. The rolling bearing has a lubrication gap between an inner bearing ring and a rolling body and between an outer bearing ring and the rolling body. The method includes detecting the energy of an electric discharge event in the lubrication gaps, searching for a coincident event having a frequency above one GHz indicative of a damaging bearing current event, detecting a frequency of occurrence of discharge events, and evaluating the discharge events by correlating the frequency of occurrence and the energy of the discharge events.

Abstract translation: 描述了一种用于评估在与逆变器电连接的电机中，特别是具有直流电压链路电路的逆变器的轴承电流，特别是高频轴承电流引起的滚动轴承损坏的方法和装置。 。 滚动轴承在内轴承环和滚动体之间以及外轴承环和滚动体之间具有润滑间隙。 该方法包括检测润滑间隙中的放电事件的能量，搜索具有高于1GHz的频率的符合事件，表示损坏的承载电流事件，检测放电事件的发生频率，以及通过 将发生频率和放电事件的能量相关联。

公开(公告)号：US09046579B2

公开(公告)日：2015-06-02

申请号：US13580886

申请日：2011-02-02

Applicant: Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Hans Tischmacher

Inventor： Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Hans Tischmacher

IPC: G01R19/00 ,  G01R1/04 ,  G05B15/00 ,  G01R31/34 ,  G01M13/04 ,  G01R31/12 ,  G01R31/14

CPC classification number: G01R31/343 ,  G01M13/04 ,  G01R31/1227 ,  G01R31/14

Abstract: Electric arc discharges between bearing rings in a roller bearing are analyzed by setting a defined operating state based on rotational speed of the roller bearing, temperature of the roller bearing, an imbalance of the roller bearing causing vibrations, lubricants, axial/radial/tilt loads, tilting of the bearing rings relative to each other, pulse shape and pulse repetition rate of an applied electrical voltage, bearing play, and pre-existing damage to the roller bearing. A pulse-shaped electrical voltage between inner and outer bearing ring generates electric arc discharges, wherein for each electric arc discharge a characteristic value representative of energy, power, voltage and/or current and duration of the electric arc discharge is determined. Only those electric arc discharges are evaluated that have a qualifying value determined in accordance with at least one of the characteristic values greater than a predefined limit value.

Abstract translation: 通过基于滚子轴承的转速，滚子轴承的温度，导致振动的滚子轴承的不平衡，润滑剂，轴向/径向/倾斜载荷设置确定的操作状态来分析滚子轴承中的轴承环之间的电弧放电 ，轴承环相对倾斜，施加电压的脉冲形状和脉冲重复率，轴承间隙以及对滚子轴承的预先存在的损坏。 内外轴承环之间的脉冲状电压产生电弧放电，其中对于每个电弧放电，确定代表电弧放电的能量，功率，电压和/或电流和持续时间的特征值。 仅评估具有根据大于预定极限值的特征值中的至少一个确定的限定值的那些电弧放电。

公开(公告)号：US20140216159A1

公开(公告)日：2014-08-07

申请号：US14346046

申请日：2011-09-30

Applicant: Sven Gattermann ,  Hans-Henning Klos ,  Klaus-Dieter Müller ,  Hans Tischmacher

Inventor： Sven Gattermann ,  Hans-Henning Klos ,  Klaus-Dieter Müller ,  Hans Tischmacher

IPC: G01M13/04

CPC classification number: G01M13/045

Abstract: In a method for determining and/or monitoring the state of a roller bearing wherein during the operation of the roller bearing a sensor signal in the form of a sound emission signal is detected in a frequency band in the ultrasonic range, according to an embodiment of the invention shock pulses in the sensor signal are determined. As a result, electrical bearing currents in the roller bearing can be detected and damage to the bearing can therefore be avoided early.

Abstract translation: 在一种用于确定和/或监视滚子轴承的状态的方法中，其中在滚子轴承的操作期间，在超声波范围内的频带中检测出声发射信号形式的传感器信号，根据 本发明确定传感器信号中的冲击脉冲。 因此，可以检测到滚子轴承中的电气轴承电流，因此可以避免早期损坏轴承。

公开(公告)号：US08531080B2

公开(公告)日：2013-09-10

申请号：US12737609

申请日：2009-07-14

Applicant: Michael Frank ,  Sven Gattermann ,  Peter Van Hasselt

Inventor： Michael Frank ,  Sven Gattermann ,  Peter Van Hasselt

IPC: H02K1/30 ,  H02K1/22

CPC classification number: H02K1/30 ,  H02K11/01 ,  H02K55/04 ,  Y02E40/625

Abstract: A rotor for a synchronous machine has a rotor axis which defines a rotor shaft. The rotor has a winding support which is arranged on the rotor shaft such that they rotate together, in such a way that it surrounds the rotor shaft in a center section with respect to the rotor axis. The winding support is fitted with a superconducting rotor winding. The rotor has a sleeve which at least radially surrounds the winding support and the rotor winding with respect to the rotor axis. The sleeve is formed integrally from a metal alloy, which is non-magnetic, has an electrical conductivity of at least 60% of the electrical conductivity of copper at 20° C., has a mechanical tensile strength of at least 250 N/mm2 at 200° C. and has a 0.2% proof stress of at least 200 N/mm2 at 200° C.

Abstract translation: 用于同步电机的转子具有限定转子轴的转子轴线。 转子具有绕转支撑件，该支撑件布置在转子轴上，使得它们一起旋转，使得其相对于转子轴线在中心部分围绕转子轴。 绕组支架配有超导转子绕组。 转子具有至少围绕绕组支撑件和转子绕组相对于转子轴线径向包围的套筒。 套筒由非磁性的金属合金整体形成，其导电率至少为20℃的铜电导率的60％，其机械拉伸强度至少为250N / mm2，在 在200℃下具有至少200N / mm 2的0.2％屈服应力。

公开(公告)号：US20120323372A1

公开(公告)日：2012-12-20

申请号：US13580886

申请日：2011-02-02

Applicant: Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Hans Tischmacher

Inventor： Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Hans Tischmacher

IPC: G01R19/00 ,  G01R1/04 ,  G05B15/00

CPC classification number: G01R31/343 ,  G01M13/04 ,  G01R31/1227 ,  G01R31/14

Abstract: Electric arc discharges between bearing rings in a roller bearing are analyzed by setting a defined operating state based on rotational speed of the roller bearing, temperature of the roller bearing, an imbalance of the roller bearing causing vibrations, lubricants, axial/radial/tilt loads, tilting of the bearing rings relative to each other, pulse shape and pulse repetition rate of an applied electrical voltage, bearing play, and pre-existing damage to the roller bearing. A pulse-shaped electrical voltage between inner and outer bearing ring generates electric arc discharges, wherein for each electric arc discharge a characteristic value representative of energy, power, voltage and/or current and duration of the electric arc discharge is determined. Only those electric arc discharges are evaluated that have a qualifying value determined in accordance with at least one of the characteristic values greater than a predefined limit value.

Abstract translation: 通过基于滚子轴承的转速，滚子轴承的温度，导致振动的滚子轴承的不平衡，润滑剂，轴向/径向/倾斜载荷设置确定的操作状态来分析滚子轴承中的轴承环之间的电弧放电 ，轴承环相对倾斜，施加电压的脉冲形状和脉冲重复率，轴承间隙以及对滚子轴承的预先存在的损坏。 内外轴承环之间的脉冲状电压产生电弧放电，其中对于每个电弧放电，确定代表电弧放电的能量，功率，电压和/或电流和持续时间的特征值。 仅评估具有根据大于预定极限值的特征值中的至少一个确定的限定值的那些电弧放电。

公开(公告)号：US20120319636A1

公开(公告)日：2012-12-20

申请号：US13580903

申请日：2011-02-03

Applicant: Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Arno Steckenborn ,  Oliver Theile ,  Hans Tischmacher

Inventor： Sven Gattermann ,  Ralf Kowalewski ,  Carsten Probol ,  Arno Steckenborn ,  Oliver Theile ,  Hans Tischmacher

IPC: H02P23/14

CPC classification number: G01M13/04

Abstract: A method and device for assessing damage to a rolling bearing caused by bearing currents, in particular high-frequency bearing currents, in an electric machine which is electrically connected to an inverter, in particular to an inverter having a DC voltage link circuit, is described. The rolling bearing has a lubrication gap between an inner bearing ring and a rolling body and between an outer bearing ring and the rolling body. The method includes detecting the energy of an electric discharge event in the lubrication gaps, searching for a coincident event having a frequency above one GHz indicative of a damaging bearing current event, detecting a frequency of occurrence of discharge events, and evaluating the discharge events by correlating the frequency of occurrence and the energy of the discharge events.

Abstract translation: 描述了一种用于评估在与逆变器电连接的电机中，特别是具有直流电压链路电路的逆变器的轴承电流，特别是高频轴承电流引起的滚动轴承损坏的方法和装置。 。 滚动轴承在内轴承环和滚动体之间以及外轴承环和滚动体之间具有润滑间隙。 该方法包括检测润滑间隙中的放电事件的能量，搜索具有高于1GHz的频率的符合事件，表示损坏的承载电流事件，检测放电事件的发生频率，以及通过 将发生频率和放电事件的能量相关联。

公开(公告)号：US20110127874A1

公开(公告)日：2011-06-02

申请号：US12737609

申请日：2009-07-14

Applicant: Michael Frank ,  Sven Gattermann ,  Peter Van Hasselt

Inventor： Michael Frank ,  Sven Gattermann ,  Peter Van Hasselt

IPC: H02K3/46

CPC classification number: H02K1/30 ,  H02K11/01 ,  H02K55/04 ,  Y02E40/625

Abstract: A rotor for an electrical machine, in particular a synchronous machine has a rotor axis which defines a rotor shaft. The rotor has a winding support which is arranged on the rotor shaft such that they rotate together, in such a way that it surrounds the rotor shaft in a centre section with respect to the rotor axis. The winding support is fitted with a superconducting rotor winding. The rotor has a sleeve which at least radially surrounds the winding support and the rotor winding with respect to the rotor axis. At least in the area, in which it radially surrounds the winding support and the superconducting rotor winding, the sleeve is formed integrally from a metal alloy, which is non-magnetic, has an electrical conductivity of at least 60% of the electrical conductivity of copper at 20° C., has a mechanical tensile strength of at least 250 N/mm2 at 200° C. and has a 0.2% proof stress of at least 200 N/mm2 at 200° C.

Abstract translation: 用于电机的转子，特别是同步电机具有限定转子轴的转子轴线。 转子具有绕转支撑件，该支撑件布置在转子轴上，使得它们一起旋转，使得其相对于转子轴线在中心部分围绕转子轴。 绕组支架配有超导转子绕组。 转子具有至少围绕绕组支撑件和转子绕组相对于转子轴线径向包围的套筒。 至少在其径向围绕绕组支撑件和超导转子绕组的区域中，套筒由非磁性的金属合金整体形成，其导电率至少为电导率的60％ 在20℃的铜，在200℃下的机械拉伸强度为至少250N / mm 2，并且在200℃下具有至少200N / mm 2的0.2％屈服应力。